The story
- Jamaican Creole · derived frombaby-mother“pregnant woman”
- English todaybaby mama
Formed in African-American Vernacular English, attested since c. 1986 and popularized in the 2000s. Possibly from or influenced by same term in Jamaican English, from Jamaican Creole baby-mother (“pregnant woman”) (1966), alternatively due simply to grammatical similarities between AAVE and Jamaican Creole.
Etymology from Wiktionary, CC BY-SA 4.0.